diff --git a/_Sidebar.md b/_Sidebar.md
index 264af07..17272b3 100644
--- a/_Sidebar.md
+++ b/_Sidebar.md
@@ -22,5 +22,5 @@
   - Format API
     - [How to create a new Format?](How-to-create-a-new-Format)
     - [FormatInterface](FormatInterface)
-    - FormatAbstract
+    - [FormatAbstract](FormatAbstract)
   - [Technical Recommendations](Technical-Recommendations)
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